Related Manuals for Hanna Instruments HI 96769C
Summary of Contents for Hanna Instruments HI 96769C
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Page 1: Instruction Manual
Instruction Manual HI 96769C Anionic Surfactants ISM This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the CE Directives... -
Page 3: Table Of Contents
BATTERY MANAGEMENT ....................24 BATTERY REPLACEMENT ....................24 ACCESSORIES .........................25 WARRANTY .........................26 All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA. -
Page 4: Preliminary Examination
PRELIMINARY EXAMINATION Please examine this product carefully. Make sure that the instrument is not damaged. If any damage occurred during shipment, please notify your Dealer. Each HI 96769 Ion Selective Meter is supplied complete with: • Two Sample Cuvets and Caps •... -
Page 5: General Description
GENERAL DESCRIPTION The HI 96769 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings. -
Page 6: Specifications
SPECIFICATIONS Range 0.00 to 3.50 mg/L (as SDBS) Resolution 0.01 mg/L Precision ±0.04 mg/L @ 1.00 mg/L Typical EMC Deviation ±0.01 mg/L Light Source Tungsten lamp Light Detector Silicon Photocell with narrow band interference filter @ 610 nm Method Adaptation of the USEPA method 425.1 and Standard Methods for the Examination of Water and Wastewater, 20 edition, 5540C, Anionic Surfactants as MBAS. -
Page 7: Principle Of Operation
PRINCIPLE OF OPERATION Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, molecules or crystal lattices. If pure absorption occurs, the fraction of light absorbed depends both on the optical path length through the matter and on the physical-chemical characteristics of the substance according to the Lambert-Beer Law: = ε... -
Page 8: Functional Description
A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the cuvet. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity I or I. - Page 9 KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. • ZERO/CFM: to zero the meter prior to measurement, to confirm edited values or to confirm factory calibration restore. • READ/ /TIMER: this is a multi-functional key. In measurement mode, press to make a measurement, or press and hold for three seconds to start a pre-programmed countdown prior to measurement.
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Page 10: Errors And Warnings
ERRORS AND WARNINGS The instrument shows clear messages when erroneous condition appears. Messages are also displayed when the obtained values are outside expected range. The beeper is playing a beep on errors. a) on zero reading Light High: There is too much light to perform a measurement. Please check the preparation of the zero cuvet. - Page 11 Under range: A blinking “0.00” indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure you use the same cuvet for reference (zero) and measurement. Over Range: A flashing value of the maximum concentration indicates an over range condition.
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Page 12: General Tips For An Accurate Measurement
Battery low: The battery must be replaced soon. Dead battery: This indicates that the battery is dead and must be replaced. Once this indication is displayed, the meter will lock up. Change the battery and restart the meter. GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed during testing to ensure best accuracy. -
Page 13: Startup
• In order to avoid reagent leaking and to obtain more accurate measurements, it is recommended to close the cuvet first with the supplied HPDE plastic stopper and then with the black cap. • Whenever the cuvet is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil or dirt. -
Page 14: Measurement Procedure
MEASUREMENT PROCEDURE • Turn the meter on by pressing ON/OFF. The display briefly shows all tags on. • When the beeper sounds briefly and the LCD displays dashes, the meter is ready. The blinking “ZERO” indicates that the instrument needs to be zeroed first. •... - Page 15 Notes: Chloroform is heavier than water thus it will sink to the bottom of the graduated glass vial; Do not mix up the pipettes. • Close tightly the glass vial with its cap and shake it vigorously for 30 seconds. Note: Block the cap with a finger during shaking.
- Page 16 • Close tightly the glass vial with its cap and shake it vigorously for 30 seconds. Note: Block the cap with a finger during shaking. • Press and hold READ/ /TIMER for three seconds and the display will show the countdown.
- Page 17 • Cap the cuvet. This is the reacted sample (#2). • Fill another cuvet with 10 mL of Chloroform reagent up to the 10 mL mark and place the cap. This is the blank (#1). • Place the blank (cuvet #1) into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove.
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Page 18: Validation Procedure
• At the end of measurement, the instrument directly displays concentration in mg/L (ppm) of anionic surfactants (MBAS) as SDBD on the LCD. CONVERSION FACTORS The anionic detergent content is expressed as mg/L of SDBS . Convert the reading to mg/L (ppm) of a different anionic detergent concentration (DX) of known molecular weight (MW ), as follows: Reading (mg/L SDBS) x MW... - Page 19 • Place the CAL CHECK Standard HI 95769-11 Cuvet A into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove. • Press ZERO/CFM and the lamp, cuvet and detector icons will appear on the display, depending on the measurement phase.
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Page 20: Calibration Procedure
CALIBRATION PROCEDURE Note: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or ON/OFF keys. Warning: Do not calibrate the instrument with standard solutions other than the HANNA CAL CHECK Standards, otherwise erroneous results will be obtained. For accurate validation, please perform test at room temperature: 18 to 25°C (64.5 to 77.0°F) •... - Page 21 • Place the CAL CHECK Standard HI 95769-11 Cuvet B into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove. • Press READ/ /TIMER and the lamp, cuvet and detector icons will appear on the display, depending on the measurement phase.
- Page 22 • When the correct year has been set, press ZERO/CFM or READ/ /TIMER to confirm. Now the display will show the month blinking. • Press GLP/ to edit the desired month (01-12). If the key is kept pressed the month number is automatically increased. •...
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Page 23: Glp
In the GLP mode, the last user calibration date can be consulted and the factory calibration can be restored. LAST CALIBRATION DATE To display the calibration date: • Press GLP/ to enter GLP mode. The calibration month and day will appear on the main display and the year on the secondary display. -
Page 24: Battery Management
BATTERY MANAGEMENT To save battery, the instrument shuts down after 10 minutes of non-use in measurement mode and after 1 hour of non-use in calibration mode. If a valid measurement was displayed before auto shut off, the value is displayed when the instrument is switched on. -
Page 25: Accessories
ACCESORIES REAGENT SET HI 93769-01 Reagents for 40 Anionic Surfactants tests OTHER ACCESORIES HI 95769-11 CAL CHECK Standard Cuvets (1 set) HI 70000P 20 mL Deionized rinse solution (25 pcs) HI 740220 25 mL glass test tubes with caps (2 pcs) HI 721310 9V battery (10 pcs.) HI 731318... -
Page 26: Warranty
If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid.
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